package com.sp.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.*;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spi.service.contexts.SecurityContext;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2WebMvc;

import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.List;

/**
 * Swagger配置
 *
 * @author tong
 */
@Configuration
@EnableSwagger2WebMvc
public class Swagger2Config {

    @Value("${swagger.enable}")
    private boolean enable = false;

    @Bean
    public Docket docket1() {
        ApiInfo apiInfo = new ApiInfoBuilder()
                .title("sp-api文档")
                .description("本文档描述sp的api")
                .version("1.0")
                .contact(new Contact("tong", "https://www.bing.com", "test@qq.com"))
                .build();

        return new Docket(DocumentationType.SWAGGER_2)
                .enable(enable)
                .apiInfo(apiInfo)
                // 配置要忽略的参数
                .ignoredParameterTypes(HttpServletRequest.class)
                // 为当前包下controller生成API文档
                .select().apis(RequestHandlerSelectors.basePackage("com.sp.controller")).build()
                // 添加登录认证
                .securitySchemes(securitySchemes())
                .securityContexts(securityContexts());
    }

    private List<ApiKey> securitySchemes() {
        //设置请求头信息
        List<ApiKey> result = new ArrayList<>();
        ApiKey apiKey = new ApiKey("Authorization", "Authorization", "header");
        result.add(apiKey);
        return result;
    }

    private List<SecurityContext> securityContexts() {
        // 设置需要登录认证的路径
        List<SecurityContext> result = new ArrayList<>();
        result.add(getContextByPath("/*"));
        return result;
    }

    private SecurityContext getContextByPath(String pathRegex) {
        return SecurityContext.builder()
                .securityReferences(defaultAuth())
                .forPaths(PathSelectors.regex(pathRegex))
                .build();
    }

    private List<SecurityReference> defaultAuth() {
        List<SecurityReference> result = new ArrayList<>();
        AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
        AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];
        authorizationScopes[0] = authorizationScope;
        result.add(new SecurityReference("Authorization", authorizationScopes));
        return result;
    }

}